Light & Medium-Duty Butterfly Hole Shelving Systems

Global Industrial Whitepaper & Product Catalog by Foshan Dinghui Intelligent Warehousing Technology Co., Ltd. (ISO 9001 & CE Certified)

Advanced Manufacturing Architecture

Founded in 2015, Foshan Dinghui Intelligent Warehousing Technology Co., Ltd. has established itself as an elite global manufacturer of heavy-duty industrial storage racks, pallet racking systems, and automated warehouse solutions. Our infrastructure features a state-of-the-art manufacturing facility spanning over 38,000 square meters, utilizing automated roll-forming and high-performance electrostatic powder-coating technologies.

By leveraging 12 years of core industry experience and 8 years of global export proficiency, we yield an annual export volume exceeding $25 million USD. Our primary export corridors span North America, Europe, Southeast Asia, and the Middle East, sustained by a network of over 850 strategic supply chain partners.

Dinghui Factory Floor Production Automated Roll Forming Line
38,000m²
Production Space
$25M+
Annual Export Value
35-FTE
QA/QC Laboratory Team
18+
Senior R&D Engineers

Global Market Dynamics of Butterfly Hole Shelving

How the evolution of automated intralogistics and micro-fulfillment is positioning the boltless butterfly connection as the industry standard.

Global E-Commerce Expansion

The rapid growth of rapid-delivery hubs and decentralized micro-fulfillment warehouses has created a strong demand for modular, boltless shelving. The butterfly hole profile allows operations teams to configure, expand, and relocate shelving bays without tools, reducing setup times by up to 65% compared to traditional nut-and-bolt structures.

Optimized Load Deflection

Butterfly hole shelving uses a tapered slot design. When load is applied to the beams, the butterfly connector is driven deeper into the upright's matching punch, securing the joint further. This design provides high structural rigidity and reduces lateral sway under dynamic warehouse loads.

Corrosion & Durability Requirements

Modern commercial warehousing requires long-lasting surface protection. By using electrostatic thermosetting powder coating over high-grade cold-rolled steel, the shelves resist scratches and impacts while preventing oxidation in temperature-controlled or high-humidity facilities.

Dinghui Material Testing Lab
ISO 9001 Certification ISO 9001 Certified Quality System

Technical Quality Assurance

Our quality control procedures conform to ISO 9001 and CE standards. Supported by our 35-member QA/QC team, we conduct testing protocols on every production batch to verify safety and performance limits before dispatch.

Raw Material Tensile Testing: Verifies the yield strength and ultimate elongation of our steel coil feedstocks.

Structural Load-Bearing Simulation: Evaluates upright deflection limits under asymmetric and overloaded distribution profiles.

Powder Coating Adhesion Testing: Uses cross-hatch cuts and impact tests to verify finish adhesion, ensuring long-term rust prevention.

Weld Non-Destructive Inspection (NDI): Ultrasonic and dye penetrant testing are performed on load-bearing components and support braces to confirm weld integrity.

Technology & R&D Roadmap

How we are preparing next-generation shelving systems for modern warehouses and automated environments.

Phase I: High-Strength Steel Optimization

Transition to Advanced Low-Alloy, High-Strength Steels

Reducing structural weight by 15% while keeping the rated load capacity intact. This supports sustainability initiatives and lowers international freight emissions.

Phase II: Next-Gen Anti-Corrosion Coating

Bio-based and Antimicrobial Powder Formulation

Deploying specialized antimicrobial, low-VOC powder coatings for pharmaceutical storage and cleanroom environments, preventing microbial colonization on metal surfaces.

Phase III: Smart Warehouse Integration

Barcode, RFID, and AMR Compatibility

Developing shelf structures with integrated mounts for passive RFID tracking tags and optimized clearance heights for automated mobile robots (AMRs).

Macro-Industry Warehousing Solutions

Tailored configurations designed to resolve complex storage bottlenecks across distinct sectors.

E-Commerce & 3PL Fulfillment

High-density picking configurations featuring multi-level mezzanines and picking lanes built on butterfly hole upright frameworks. Engineered to optimize item access speeds and floor-space utilization.

Cold Chain & Pharmaceutical Storage

Specialized temperature-resistant powder formulations designed to resist thermal shock down to -30°C. Protects against corrosion caused by condensation in sub-zero environments.

Automotive & Industrial Parts

Heavy-duty, wide-span shelving configurations engineered to support heavy tooling, steel parts boxes, and sub-assembly storage. Built to withstand high dynamic impacts in industrial zones.

Frequently Asked Questions

Technical guidance regarding butterfly hole storage structures, load capacities, and customization options.

What is the structural advantage of a butterfly hole connection compared to a rivet slot?

The butterfly hole system uses a tapered, dual-angled design. When dynamic load is applied, the beam's connectors settle deeper into the wedge-shaped cutouts. This creates a secure, self-locking fit that resists rotation and reduces frame deflection under load.

Can the shelf height be adjusted after installation, and are tools required?

Yes, the butterfly hole connection is entirely boltless. Shelves can be adjusted in increments (typically 50mm or 75mm depending on the profile) without tools, requiring only a rubber mallet to secure or release the beams.

What range of load capacities do your light and medium-duty shelves support?

Our light-duty ranges support 100 kg to 200 kg per shelf layer. Our medium-duty configurations support 200 kg to 500 kg per shelf layer under uniformly distributed load (UDL) conditions.

How do you guarantee corrosion protection in damp environments or overseas shipping?

We apply a multi-stage pre-treatment wash process, followed by an electrostatic application of thermosetting powder coating, cured in a high-temperature tunnel. This finish meets salt spray resistance tests, preventing rust during maritime transport and in humid storage facilities.

All Butterfly hole shelf Products